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Finding the Fourth Proportional to 127,472.40, 191,169.40 and 42,067.44

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Solution

The fourth proportional to 127,472.40, 191,169.40 and 42,067.44 is: 63,088.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,472.40 : 191,169.40 = 42,067.44 : x
  2. Step 2: Convert to fraction form
    127,472.40/191,169.40 = 42,067.44/x
  3. Step 3: Cross multiply
    127,472.40x = 191,169.40 × 42,067.44
  4. Step 4: Simplify right side
    127,472.40x = 8,042,007,264.34
  5. Step 5: Solve for x
    x = 8,042,007,264.34/127,472.40
  6. Step 6: Final answer
    x = 63,088.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.